Cdse Structure

CdSe（Cadmium Selenide）is a binary compound made of cadmium (Cd) and selenium (Se) with a zinc blende crystal structure, which is a type of cubic crystal lattice. The crystal structure of CdSe consists of closely packed atoms arranged in a face-centered cubic (FCC) lattice.

Each cadmium ion (Cd2+) is surrounded by six selenium ions (Se2-), forming a distorted octahedral coordination geometry. Similarly, each selenium ion (Se2-) is surrounded by six cadmium ions (Cd2+), also forming a distorted octahedral coordination geometry.

The CdSe crystal lattice has a lattice constant of approximately 6.05 angstroms and a bandgap energy of around 1.7 electron volts. It is a direct bandgap semiconductor, meaning that it can efficiently convert light into electricity or vice versa.

In terms of its physical properties, CdSe is a pale-yellow powder that is insoluble in water and most organic solvents. It has a melting point of 1280 degrees Celsius and a boiling point of 1310 degrees Celsius. CdSe is commonly used in the production of photovoltaic cells, light-emitting diodes (LEDs), and other electronic devices due to its unique semiconductor properties.